Brain Fever vs Decipher
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Brain Fever
Engage your mind with over 230 levels of innovative brain puzzles. This game combines visual riddles, mind challenges, and tricky puzzles with engaging storylines and plot twists. Perfect for solo play or with friends and family.
- 230+ Levels
- One-finger tap and drag gameplay
- Visual puzzles and mind challenges
- Tricky puzzles and logical IQ tests
- Hundreds of stories with plot twists
- Fun for all ages
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240+ Levels: Simple gameplay with one finger: Tap and Drag Are you looking for a new and different game among hundreds of brain puzzle games? You are in the right place and the game you are looking for is here! "Brain Fever: Puzzle Game" is designed with new features for players who love brain puzzle games but find innovations in the game! Game Features: Brain Fever: This game is a combination of a variety of riddles with visual puzzles, mind challenges, brain teasers, tricky puzzles, logical IQ tests Hundreds of stories with plot twists await you. Brain Fever is a fun game for all ages and "Brain Fever: Puzzle Game" provides that for you. You can play this game with your friend, partner, or kids and have a wonderful time together! Now, download "Brain Fever: Puzzle Game" and share it with your friends. Have fun!"
Decipher
Engage your mind with encrypted messages and famous quotes. This game tests your logic, vocabulary, and pattern recognition by having you crack substitution ciphers.
- Solve encrypted messages
- Crack substitution ciphers
- Test logic and vocabulary
- Improve pattern recognition
- Play with famous quotes
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Crack hidden quotes, one letter at a time. Decipher turns quotes and lyrics into cryptogram puzzles. Each number represents a letter. Spot familiar words, follow repeating patterns, and piece together the message. • Solve quote and lyric puzzles across multiple difficulty levels. • Take on the Daily Challenge and build your streak. • Earn XP, level up, and unlock Game Center achievements. • Track your solve times, success rate, and personal bests. • Use hints when you need a nudge. • Save an unfinished puzzle and return to it later. • Play with light or dark themes and adjustable text sizes. Start with a few revealed letters. See how far your logic takes you. Decipher includes ads and optional purchases for hints and removing ads. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ratings volume: Brain Fever at 471 against Decipher's 2. Brain Fever also leads on update cadence (every 9 days vs monthly). Decipher's advantage is rating (5.0 vs 4.7). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Brain Fever sells 10 one-off in-app purchases and Decipher sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Decipher holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Brain Fever has 471 ratings behind it against 2, so its average is the more settled of the two.
Brain Fever ships an update every 9 days, Decipher monthly. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.
| Parameter | Brain Fever | Decipher |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (471 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 34.5% of reviews | — |
| Number of ratings | 471 — better | 2 |
| Update frequency | Every 9 days — better | Monthly |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 650 MB | 31 MB |
| Age rating | 12+ | 12+ |
| Developer | Doanh Hoang | Errand Labs, LLC |
Customer experience
Brain Fever
Decipher
Bugs and requests
Brain Fever
Reported bugs
2 issues- Levels freezing
- Purchased items not working
Requested features
2 requests- More levels
- Improved ad experience
Decipher
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Brain Fever
- 5 hourglasses$1.99
- Daily Hint Pack$1.99
- 5 hints$1.99
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- 10 hints, double on first purchase.$2.99
- 15 hints$3.59
- Remove Ads$3.99
- Premier pack$4.99
- 20 hints, double on first purchase.$4.99
- 45 hints$4.99
- 50 hints, double on first purchase.$9.99
Decipher
- 10 Hints$1.99
- Decipher Remove Ads$4.99
- 50 Hints$4.99
Questions
Is Brain Fever free?
Is Decipher free?
Which has better reviews, Brain Fever or Decipher?
Do Brain Fever or Decipher have ads?
Which is updated more often, Brain Fever or Decipher?
Other comparisons
